import time

print(time.time())
print(time.strftime("%Y%m%d_%H%M%S",time.localtime()))
print(time.strftime("%Y-%m-%d",time.localtime()))
print(time.strftime("%Y%m%d_%H%M%S",time.localtime()))
print(time.strftime("%Y%m%d_%H%M%S",time.localtime()))
print(time.strftime("%Y%m%d_%H%M%S",time.localtime()))